Speaking topics in text
q3
Online speaking recording
Votes
This speaking topic by users
| Post dates | Users | rates | Contents |
|---|---|---|---|
| 2014-11-12 | tnan3158 | 80.00 | Check this speaking |
| 2016-02-13 | silviadan | 80.00 | Check this speaking |
| 2016-02-16 | hudashti1 | Check this speaking | |
| 2014-05-16 | ioanap | 83.33 | Check this speaking |
| 2015-07-13 | sahoo | 90.00 | Check this speaking |
Speaking category
Speakings by user Ekhlass1980
:
- Bioluminescence Bioluminescence occurs when organisms convert chemical energy into visible light. This happens when a chemical reaction involving oxygen and two other molecules takes place. During this reaction, light of varying colors may be emitted. The 80
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23 in 30
Some overlapping speeches.